<p>The clogging of
filtration membrane by particles otherwise known as fouling is a major concern
in membrane filtration technology due reduction of flux, membrane lifespan and
system performance, with an associated increase in process and operating costs
in industries that utilize membrane in their production process. Cleaning or
replacement of a fouled membrane requires production to be interrupted or the
entire system to be shut down. This is because the cleaning or replacement of
the fouled membrane requires production to be interrupted for the cleaning process
or the entire system to be shut down for the replacement process to take place,
leading to great losses to the industries involved. Many approaches have been
devised over the years to tackle this problem, of which not only undermine the
performance of the filtration membrane but also contribute to great losses to
industries that apply them. Cheaper and more efficient means of fouling control
remains the key to solving this problem.
</p>
<p> </p>
<p>A water filtration
system is proposed that uses piezoelectric crystals attached on a tubular
polyvinylidene fluoride (PVDF) membrane to increase flux and delay the clogging
of the pores of the filtration membrane (by particles). Filtration tests with
mud solution showed that the membrane vibrated with piezoelectrics reduced the
clogging of the pores and increased permeate flux of the filtration process as
compared to the non-vibrated membrane. To optimize the permeate flux production
of the system and fouling reduction, the effects of voltage, concentration and location
of piezoelectric crystals<a> were investigated. An equation
to best fit the experimental data was developed which can help in the optimization
of the variables.</a></p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/13403888 |
| Date | 18 December 2020 |
| Creators | Obinna K Aronu (9863213) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY-NC-SA 4.0 |
| Relation | https://figshare.com/articles/thesis/Membrane_Fouling_Mitigation_in_Water_Filtration_Using_Piezoelectrics/13403888 |
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